Monitor Scan Tool Data

Connect scan tool to data link connector (DLC).
Engine "ON".
Monitor the "ENGINE SPEED, INPUT SPEED SENSOR (PG-A), OUTPUT SPEED SENSOR (PG-B), GEAR POSITION" parameter on the scan tool.

Disconnect the solenoid valve connector and perform the "STALL TEST".

Specification: 2400-2800 engine RPM

Fig 1: Scan Tool Display - Engine Speed

Courtesy of KIA MOTORS AMERICA, INC.

OPERATING ELEMENT OF EACH SHIFTING RANGE

Selector lever position	Overdrive control switch	Shifting gear	Engine start	Parking Mechanism	Clutch				Brake
Selector lever position	Overdrive control switch	Shifting gear	Engine start	Parking Mechanism	C1	C2	C3	OWC	B1	B2
P	-	Neutral	Possible	◦
R	-	Reverse			◦
N	-	Neutral	Possible							◦
D	ON	1st				◦		◦
		2nd				◦			◦
		3rd			◦	◦	◦
		4th					◦		◦
D	OFF	1st				◦		◦
		2nd				◦			◦
		3rd			◦	◦	◦
2	-	1st				◦		◦
2	-	2nd				◦			◦
L	-	1st				◦				◦
C1: Front clutch C2: Rear clutch C3: End clutch OWC: One way clutch B1: Kickdown brake B2: Low & reverse brake

Stall test procedure in D3 and reason

Procedure

Warm up the engine
Set 3rd gear hold by disconnecting the solenoid valve connector. Fully depress the brake pedal, then place the transaxle gear lever into "D" range. Press and hold the accelerator pedal to the floor for no more than eight seconds while observing the engine, input speed, and output speed RPM values.
* The slippage of 3rd gear operating parts can be detected by stall test in D3.

Reason for stall test

If there is no mechanical defaults in A/T, all slippage occurs in torque converter.
Therefore, engine revolution is output, but input and output speed revolution must be "zero" due to wheel's lock.
If 1st gear operating part has faults, input speed revolution will be out of specification.
If output speed revolution is output. It means that the foot brake force is not applied fully. Remeasuring is required.

Is "STALL TEST" within specification?
YES : --> Go to SIGNAL CIRCUIT INSPECTION procedure.

NO : --> Go to "COMPONENT INSPECTION " procedure.

CAUTION:

Do not let anybody stand in front of or behind the vehicle while this test is being carried out.
Check the A/T fluid level and temperature and the engine coolant temperature.
- Fluid level: At the hot mark on the oil level gauge.
- Fluid temperature: 176-212°F (80-100°C).
- Engine coolant temperature: 176-212°F (80-100°C).
Chock both rear wheel (left and right).
Pull the parking brake lever on with the brake pedal fully depressed.
The throttle should not be left fully open for more than eight seconds.
If carrying out the stall test two or more times, move the select lever to the "N" position and run the engine at 1,000 RPM to let the A/T fluid cool down before carrying out subsequent test.